The man believed to be the world’s heaviest is recovering from biliopancreatic bypass surgery in Mexico.

Thirty-three-year-old Juan Pedro Franco has weighed up to 1,311 pounds (595 kilos). He has been largely bed-ridden for the last seven years due to his large size.

He was recently put on a diet to help shed some weight but doctors were still concerned about his health. To prepare for his bypass surgery, Franco lost 385 pounds.

Franco has battled obesity all of his life, but the problem got worse after an accident at age 17. After this time he experienced a dramatic increase in weight gain.

Threats to Franco’s health from his obesity ranges from diabetes to organ failure.

His medical team told media they are awaiting to see how much of a loss in weight his body will make from the surgery, but due to Franco’s delicate health they are keeping a close eye over the patient.

According to the World Health Organisation, Mexico is a global leader in obesity with 35 percent of its adolescents overweight or obese.